Issued Patents All Time
Showing 26–50 of 73 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7115153 | Electric separator with a rinsing cleaning system | Stephan Ahlborn, Bernhard Batram | 2006-10-03 |
| 7112695 | Method for the purification of a crude acrylic acid melt | Bernd Eck, Jorg Heilek, Klaus Joachim Müller-Engel | 2006-09-26 |
| 7029575 | Filter with a valve combination component | Wilhelm Ardes | 2006-04-18 |
| 6939991 | Preparation of acrylic acid | Joachim Thiel, Ulrich Hammon, Jorg Heilek, Jürgen Schröder, Klaus Joachim Müller-Engel | 2005-09-06 |
| 6925828 | Device for cooling and electrical appliance | Robert Gerstner, Detlev Noeldge, Johannes Linne, Georg Ahn | 2005-08-09 |
| 6921837 | Process for the purification and preparation of acrylic acid or methacrylic acid | Bernd Eck, Jorg Heilek, Volker Schliephake | 2005-07-26 |
| 6901851 | Rotating mechanism for conveyor systems | — | 2005-06-07 |
| 6884348 | Module of units for an internal combustion engine | — | 2005-04-26 |
| 6852881 | Purification method for (meth)acrylic acid | Emile De Decker, Erik Bastiaensen, Bernd Eck, Jorg Heilek | 2005-02-08 |
| 6700016 | Method of purifying and producing acrylic acid or methacrylic acid | Bernd Eck, Jorg Heilek, Volker Schliephake | 2004-03-02 |
| 6685829 | Fluid filter with a discharge dome that is fixed to the housing | Wilhelm Ardes | 2004-02-03 |
| 6683179 | Preparation of caprolactam | Peter Bassler, Rolf Fischer, Eberhard Fuchs, Johann-Peter Melder, Frank Ohlbach | 2004-01-27 |
| 6677449 | Preparation of caprolactam | Peter Bassler, Rolf Fischer, Eberhard Fuchs, Johann-Peter Melder, Frank Ohlbach | 2004-01-13 |
| 6569326 | Fluid filter with a central component which can be assembled | Wilhelm Ardes | 2003-05-27 |
| 6534680 | Dicarboxylic acid crystallizates | Matthias Rauls, Hermann Wistuba, Bernhard Otto | 2003-03-18 |
| 6362347 | Method for purifying phthalides | Hermann Putter, Heinz Hannebaum | 2002-03-26 |
| 6315884 | Method for producing phthalides | Hermann Putter, Heinz Hannebaum | 2001-11-13 |
| 6317309 | Method and device for the controlled driving of a proportionally operated magnetic valve | Hardy Haas, Klaus-Dieter Leimbach | 2001-11-13 |
| 6242639 | Preparation of neopentyl glycol hydroxyprivalate granules | Hans-Jurgen Weyer, Bernd Eck, Bernhard Maltry | 2001-06-05 |
| 6113657 | Purification of caustic soda | Dieter Schlafer, Michael Mauss, Matthias Rauls | 2000-09-05 |
| 6086763 | Disk, in particular the front disk of a filter element | — | 2000-07-11 |
| 6016923 | Filter cartridge for a filter for filtering liquid or gaseous media | — | 2000-01-25 |
| 5981798 | Preparation of a crystalline solid from glycine-N,N-diacetic acid derivatives with sufficiently low hygroscopicity | Michael Schönherr, Matthias Rauls, Hermann Ascherl, Thomas Letzelter, Birgit Potthoff-Karl | 1999-11-09 |
| 5936115 | Production of clumping-free neopentyl glycol hydroxpivalate granules | Johann-Peter Melder, Bernhard Maltry | 1999-08-10 |
| 5922196 | Liquid filter with connection flange | — | 1999-07-13 |